/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.guacamole.auth.ldap.conf;

import org.apache.guacamole.GuacamoleException;
import org.apache.guacamole.GuacamoleServerException;
import org.apache.guacamole.properties.GuacamoleProperty;

/**
 * A GuacamoleProperty whose value is a MemberAttributeType. The possible
 * strings "dn" or "uid" are mapped to their values as a MemberAttributeType
 * enum.  Anything else results in a parse error.
 */
public abstract class MemberAttributeTypeProperty
        implements GuacamoleProperty<MemberAttributeType> {

    @Override
    public MemberAttributeType parseValue(String value)
            throws GuacamoleException {

        // If no value provided, return null.
        if (value == null)
            return null;

        // dn
        if (value.equals("dn"))
            return MemberAttributeType.DN;

        // uid
        if (value.equals("uid"))
            return MemberAttributeType.UID;

        // The provided value is not legal
        throw new GuacamoleServerException("Member attribute type must be "
                          + "one of \"dn\" or \"uid\".");

    }

}
